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Atherosclerosis detection by ultrasounds. A comparative histologic study on aortic specimens
Applied Pathology
|January 1, 1986
Summary
Ultrasonic tissue characterization shows promise for atherosclerosis detection. Integrated attenuation index and integrated backscatter index increase with plaque buildup, aiding in identifying arterial wall changes.
Area of Science:
- Biomedical Engineering
- Cardiovascular Research
- Medical Imaging
Background:
- Atherosclerosis is a significant cardiovascular disease characterized by plaque buildup in arteries.
- Accurate detection and characterization of atherosclerotic plaques are crucial for effective disease management.
- Current diagnostic methods may have limitations in early or detailed plaque assessment.
Purpose of the Study:
- To evaluate the utility of ultrasonic tissue characterization for detecting atherosclerosis.
- To determine if ultrasonic indices correlate with histological findings in atherosclerotic aortic specimens.
Main Methods:
- In vitro ultrasonic measurements were performed on 400 fresh human aortic specimens.
- Specimens were histologically classified into normal, fibrous, fibro-fatty, and calcified plaque groups.
- Two ultrasonic indices, integrated attenuation index (IAI) and integrated backscatter index (IBI), were measured.
Main Results:
- Both IAI and IBI showed increased values in atherosclerotic specimens compared to normal aortic walls.
- Elevated indices correlated with the deposition of collagen and calcium salts in plaques.
- Fatty tissue within plaques reduced echogenicity, impacting the ultrasonic profile.
Conclusions:
- Ultrasonic tissue characterization, using IAI and IBI, is a potentially useful tool for atherosclerosis detection.
- These ultrasonic indices can help differentiate normal arterial tissue from atherosclerotic plaques.
- Further research may explore the clinical application of ultrasound for in vivo atherosclerosis assessment.